Voltages dropping? - Tech Support Forums

PastranA · October 19th, 2004, 05:52 PM

hey guys, the last 2 days i havent been able to stay on the computer for more than 20 mins because it just restarts itself. I look down into the corner of the screen and ASUSprobe (the temp monitor) starts to flash red so i have a look the temps are fine but the voltages seem to drop. then the computer just retstarts. im not sure if this is the program restarting the computer or the cpu has something built in the recognize this. anyway is there some way to cure this drop in voltages? cos its annoying having it constantly restart. and also once the computer has been on for like half an hour it will stay at the desktop for like 30 secs then go again

System specs:
ASUS A7N8X Deluxe MB
AMD 2500+
512 PC2700 RAM
128 mb GeForce4 Ti4400
80gig Seagate
80gig Maxtor
CoolerMaster Aero+
350W PSU
4 Blue LED Case Fans

BTW i have tried disconnecting the case fans thinking they may make it stop but didnt do anything.

Anyhelp is much appreciated

JPMiller · October 19th, 2004, 06:06 PM

what brand is the PSU?
use EverestHome110 personal to monitor temps and voltages...
look through this post for more info... PSU info
may be the PSU...
I havent had a whole lotta luck with asusprobe in past..

Xtreeme · October 19th, 2004, 06:13 PM

PSU's bunk. I.E> its failing and when it does go-can be very bad for the rest of system "pop". Replace it with a good, high watts one. On the cheap but good I like Vantec ION 400 (400watt-500watt max) under $50 and superb quality tons of features. And super quiet.

"I havent had a whole lotta luck with asusprobe in past"

I have the exact same mobo and temp proggy as him. Never had it read low volts or act irratically. It tells the cpu temp about 2c hotter then it is, and that the only issue it has on my rig. So since same mobo-same software as me. Id say the psu is def. failing. THe only way I can make it "bug" up is to run another temp monitor at same time. Then that is of course not its fault as the SMBUS can only be pooled from one device accuratly. Meaning they will all do that.

PastranA · October 20th, 2004, 05:40 AM

you guys are rightm i payed a little more attention to the PSU fan monitor and it seems that the fan either stops spinning or it drops to a very low rpm causing it to restart. do you reckon if i pull it apart and give it a clean out it will be alright? or do ya reckon its just stuffed?

jagnorm · October 20th, 2004, 07:43 AM

I would just replace the psu. unless you like headaches.
The best way I know of to get True temps is in the bios.

PastranA · October 21st, 2004, 08:16 PM

at the moment my psu fan is plain ans simply just not spinning. am i gonna run into troble have no exhaust for the psu?

mingyu01 · October 21st, 2004, 08:19 PM

Your PSU is overheathing probably
try replacing it

JPMiller · October 22nd, 2004, 01:05 AM

you do NOT want to have your PSU overheat and blow... it can take everything its connected to with it...
If you ABSOLUTELY cant be with out it until you can replace it you can possibly carefully replace the fan or simply re-oil it...
be forewarned that if you are not comfortable working with high voltage electronics you may not want to attempt this...
even though it is a relatively simple procedure, you are working on something that could keep enough of a charge to seriously hurt or kill you...
DO THIS AT YOUR OWN RISK
If you are confident you can handle working on it, you can find the info here...
This is a generic guide to what has to be done to re-lube the fan...do not use WD40 ...it does not last long enough..use something a little thicker like "magic oil" or clipper oil or sewing machine oil...anything that is a little heavier than WD40.

xcheck2430 · October 22nd, 2004, 01:13 AM

if the PSU does blow, ur screwed like no other. it would take everything with it, like a surge directly to the parts. try ANTEC TruePower, works for me. With temp business, my mobo sensor was messed up, and it read double whatever the temperature was, making me freak out. i once check it and it was over the boiling point, so it could be that in the bios, you have a setting that shuts the comp. off when it gets to a certain temp. go into the bios and disable that feature. then download MOTHERBOARD MONITOR 5, it was the greatest thing that ever happened to me. Reads the mobo and displays the real cpu temp on ur taskbar. it ended up reading the real temp for mine, which WAS NOT OVER 100 C...thank god. before you spend the cash for a PSU, make sure your cpu isnt actually overheating or the mobo isnt turning it off intentionally. ALSO! make sure enough power is going to the jack your computer is plugged into. im using a powerstrip and i didnt have enough power for some reason, so my Super had to fix it. ended up working out nice.

JPMiller · October 22nd, 2004, 02:16 AM

xcheck2430... you didn't read through the thread...
I wouldn't recommend turning off temperature shutdown features in the Bios unless your 100% sure its not an overheating issue... IF your board even has that feature, it could be the only thing keeping your CPU from frying...
Overheating can be due to faulty temp probes, poorly seated HSF, faulty fan, etc.
-----------------
In your case it may be C.O.P.
(CPU Overheating Protection)
ASUS C.O.P (CPU Overheating Protection) is a hardware protection circuit that automatically shuts down the system power before temperatures go high enough to permanently damage your CPU.
-----------------
have you tried touching the base of the heatsink yet?